Sodium Bisulfite

CAS #:

Linear Formula:


MDL Number:


EC No.:



(2N) 99% Sodium Bisulfite
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(2N5) 99.5% Sodium Bisulfite
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(3N) 99.9% Sodium Bisulfite
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(3N5) 99.95% Sodium Bisulfite
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(4N) 99.99% Sodium Bisulfite
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(5N) 99.999% Sodium Bisulfite
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Sodium Bisulfite Properties (Theoretical)

Compound Formula HNaO3S
Molecular Weight 104.06
Appearance White powder or cvrystals
Melting Point Decomposes
Boiling Point N/A
Density 1.48 g/cm3
Solubility in H2O N/A
Exact Mass 103.954409
Monoisotopic Mass 103.954409

Sodium Bisulfite Health & Safety Information

Signal Word Danger
Hazard Statements H302-H318
Hazard Codes Xn
Risk Codes 22-31-41
Safety Statements 26-39
RTECS Number N/A
Transport Information N/A
WGK Germany 1

About Sodium Bisulfite

Sodium Bisulfite is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Sodium Bisulfite Synonyms

Sodium hydrogensulfite, Sodium hydrogen sulfite; Sulfurousacid, monosodium salt (8CI, 9CI); Sodium bisulphite; Sulfurous acid, sodium salt

Chemical Identifiers

Linear Formula NaHSO3
MDL Number MFCD00003530
EC No. 231-548-0
Beilstein/Reaxys No. N/A
Pubchem CID 23665763
IUPAC Name sodium; hydrogen sulfite
SMILES [Na+].[O-]S(=O)O
InchI Identifier InChI=1S/Na.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-1

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


Sodium Bohr ModelSee more Sodium products. Sodium (atomic symbol: Na, atomic number: 11) is a Block D, Group 5, Period 4 element with an atomic weight of 22.989769. The number of electrons in each of Sodium's shells is [2, 8, 1] and its electron configuration is [Ne] 3s1. The sodium atom has a radius of 185.8 pm and a Van der Waals radius of 227 pm. Sodium was discovered and first isolated by Sir Humphrey Davy in 1807. In its elemental form, sodium has a silvery-white metallic appearance. It is the sixth most abundant element, making up 2.6 % of the earth's crust. Sodium does not occur in nature as a free element and must be extracted from its compounds (e.g., feldspars, sodalite, and rock salt). The name Sodium is thought to come from the Arabic word suda, meaning "headache" (due to sodium carbonate's headache-alleviating properties), and its elemental symbol Na comes from natrium, its Latin name.


See more Sulfur products. Sulfur (or Sulphur) (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. Sulfur Bohr ModelThe number of electrons in each of Sulfur's shells is 2, 8, 6 and its electron configuration is [Ne] 3s2 3p4. In its elemental form, sulfur has a light yellow appearance. The sulfur atom has a covalent radius of 105 pm and a Van der Waals radius of 180 pm. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, and epsom salts. Sulfur has been known since ancient times but was not accepted as an element until 1777, when Antoine Lavoisier helped to convince the scientific community that it was an element and not a compound.

Recent Research


June 17, 2024
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